%YAML 1.2
---
!!seq [
  !!map {
    ? !!str "one"   : !!str "two",
    ? !!str "three" : !!str "four",
  },
  !!map {
    ? !!str "five"  : !!str "six",
    ? !!str "seven" : !!str "eight",
  },
]

